o'bryan told me five elective surgeries had to be cancelled because of the spill and they had today vert ambulances to other hospitals but -- divert ambulances to other hospitals. potentially contaminated surgical instruments are being cleaned. >> we have an alternative area we opened up, to process sterile supplies. >> reporter: today we saw workers from roto rooter clearing out the sewer line that became blocked yesterday. the hospital said it was roots from nearby redwood trees that worked their way into the pipe. cal osha will investigate. california department of public health has investigated the spill and a spokesman said, no regulatory violations were found. in oakland, alex savage, ktvu channel 2 news. >> red cross teamed up with organizations for the blind and visually impaired for a blood drive. head of light house for the blind, says blind people are often recipients of other's generosity and they want to give back. winter is a crucial time because fewer people are donating due to illness, bad weather and holiday vacations. >>> obesity and a lack of health insurance are among